How to send a message to hr after the interview?

In the first paragraph, first explain your purpose, including who you are and what position you are interviewing for. The purpose of this email, and thank you for giving me an interview, and so on. In the second paragraph, reiterate your strengths and values, preferably close to the position, and reiterate your matching degree with this position. In the third paragraph, you can describe your rethinking of the interview questions after the interview and show something outside the interview. It is worth noting that we can't show our efforts to hr at the same time, but also be loyal to hr and show different personal abilities.